Get Expert Answers for Physics Problems | $1 per Answer | Support Physics Forum

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The discussion centers on a user seeking assistance with five physics problems, offering $1 per answer and expressing a willingness to donate to the forum. The user is overwhelmed with over 100 weekly physics problems and is balancing multiple science and math classes. Responses emphasize the importance of adhering to forum rules, particularly the requirement to show work before receiving help. Community members advocate for altruism in academic support and discourage monetary incentives for assistance. Overall, the thread highlights the tension between seeking help and maintaining the integrity of the forum's educational purpose.
kyang002
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If anyone is willing to help me out by answering those 5 questions ASAP (by Monday, Feb. 7th) then I will gladly pay them $1 per problem answered. I would also gladly donate to "Support Physics Forum". I am assigned over 100 problems for physics weekly and these are the ones that I cannot figure out. I am currently taking 3 science classes and 1 math class(Physics, Organic Chemistry, Biology, and Linear Calculus) and I simply do not have much spare time to keep attempting these problems.

If someone could also write out and explain how the problem is done, that would greatly help me out.
 
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Nice try. The rules must be obeyed. Read the sticky about posting your efforts first, and stop offering bribes.

If most of the guys helping out here really cared about money we'd be setting up paid homework help services. There is nothing but altruism here, and it's rotten of you to try and erode that. :frown:
 
Read the sticky at the top of the page. Show your work if you want help.
 
Thread 'Variable mass system : water sprayed into a moving container'

Thread 'Variable mass system : water sprayed into a moving container'

Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
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Thread 'Struggling to understand the concept of this question (ice cube in water optics question)'

TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
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